Fig. 7.
(A) Synthesis of photo-curable silyl ether cross-linkers. (B) TEM micrographs of PRINT hexnut particles incubated in HeLa cells: (a–f) rapidly degrading hexnut particles fabricated from the DMS cross-linker [scale bars: (a) 10 µm; (b–f) 0.5 µm; (g, h) nondegrading hexnut particles fabricated from the DTS cross-linker (scale bars: 0.5 µm). Reproduced from Ref. 44 with permission of American Chemical Society.